The traditional compositing happens between flat images, many operation depend on the depth relationship of image elements. The Deep compositing technique renders and composites deep data into the "deep images" such as dtex or Exr2, which contain information about coverage and depth along each pixel. This enables artists to achieve standard compositing operations without manual, explicit image segmentation or layering as well as decouplng rendering and compositing without having to use holdout mattes.

It’s just the technique of encoding more than just the RGBA value in a pixel. In traditional compositing technique the artist has to deal with oversampling, motion blur i.e. artifacts in semi transparent areas.Deep images deals with this by storing multiple samples per pixel at various depths or we can say, a deep image records the 3d renderer’s list of all points in depth that contribute to the pixel. Every surface or volume sample making up the final pixel is stored with its appearance information about color, opacity, and depth.

Deep images are used in several rendering and shading approaches for shadowing and occlusion calculation.

Deep shadow maps is the technique of creating filtered shadow buffers with color and transparency information It produces fast, high-quality shadows for primitives such as hair, fur, and smoke. Unlike traditional shadow maps, which store a single depth at each pixel, deep shadow maps store a representation of the fractional visibility through a pixel at all possible depths. Deep shadow maps have several advantages. First, they are prefiltered, which allows faster shadow lookups and much smaller memory footprints than regular shadow maps of similar quality. Second, they support shadows from partially transparent surfaces and volumetric objects such as fog. Third, they handle important cases of motion blur at no extra cost.

Deep images are used in several rendering and shading approaches for shadowing and occlusion calculation. Most prominent is Pixar’s RenderMan deep shadow technique in which deep textures are rendered through a light camera and evalu- ated at points visible to the render camera.

So working on one of my project in 3D I came up with a python script that lets you reveal selected object in outliner just one click or you can also use this same script to graph selected object's material in Hypershade.

To graph material of selected object press Ctrl and click on the shelf bar button of this script. This will launch Hypershade and graph the material shading network in hypershade. Again its just one click saves time.

Alright guys, don't get angry at me if you don't like it, but So far this is also true, although its a joke, but its true for some or for most of the VFX Artist..

Here is story!!!Once a guy used to study late night sitting close to window he can see out on read people coming and going , One night he noticed, some man entering his home from the front door very late at night. He got scared but didn't tell anyone, then again he say a man entering his house from the front door very late at night , he also noticed that man leaves home very early morning. He thought he will ask his mother that who is that man who comes to their home late night. Next morning, the guy wakes up but forget to ask his mom and he leaves for school. Again that night he notices some man walking in the home from the front door around 3AM and leaving as early as 5AM of morning, then he makes up his mind that he would go and first ask his mother who is that person that comes home late night and leaves very early in the morning.

Next morning he gets up and straight away rushes to his mom, he ask (full with curiosity)"Mom who is that man who comes to our house late night and even leaves early morning."

His mother replies "Oh that man who walks in late night, son he is your father, He is a VFX artist !!!"

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I heard this joke from someone while I was working @ Prime Focus, I have told this joke to so many people working in the vfx industry in India or many other countries, thought it can be just another post on my blog :) and so far this is also true, people working in VFX industry usually work long ours and hardly get time to spend time at home.

I watched 2012 yesterday night again!Somehow, 2012 is quite a popular movie. I wanted to watch this movie again as I have only watched it once before and it has got really crazy visual effects and I enjoy the action of falling skyscrapers and crazy camera angles.I don’t like the plot of the story though, it seems far too predictable – always a happy ending, and good luck seems to befall the characters far too many times until it becomes unbelievable. And, while I like the thrill of watching skyscrapers fall and the panoramic view of destruction as seen from an aerial view, what I do not like is the overusage of Computer Graphics (CG) which hyped the movie far too much till it seems too far-fetched.But this was one movie which subtly makes one think about today’s society and the issues it is facing. The movie quotes are good.Also, the movie took on the perspective and personas of many different people of distinct nationalities, culture and language and the sensitivity which it had taken in portraying their emotions and the meaning the producers wanted to bring across in the movie was enlightening. Also, what I loved about the movie is the global perspective it had taken in addressing this issue of an apocalypse. From the White House to The Vatican, The Himalayas to a traditional house in Japan, from Times Square to The Louvre in Paris and many more, it gave an intriguing view into happenings around the world on a global scale.

Linux is a totally different from windows environment and how it operates.. For those people who are new to Linux(fedora) this topic is useful..

In linux we cannot access windows NTFS drive (in some linux distro we can not in Fedora)but its not like linux doesnt like NTFS linux has built a utility that will help viewing NTFS partition thats called ntfsmount or mount.

so suppose you have multiple drive on linux and we want to know which one is NTFS or linux format.. to do this

use command fdisk -l

this will list all the partitions

eg.../dev/sda1

or /dev/sdb1/dev/sdb2

suppose sda1 is NTFS and we want to access data on our fedora,

create a folder name it whatever you want, I made a folder named it windowsDrive

So now if you want your fedora to every time show you windows drive inside the newly created folder, you need to mount your sda1 drive to that folder

so put this script line inside your etc/profiles file. i.e. located in etc directory of your fedora filesystem

This site contains actual content, written by an actual person. All of this stuff is mine. Even though it may read like it was written by monkeys on typewriters, I actually wrote it. If you want to use my stuff, you can't. At least, not without contacting me first. I also have a privacy policy that I guard fiercely. Any information you provide on this website will not be used by anyone else but me.
Blog, Website Content, VFX Showreel work & Tools & Scripts by Sanjeev Kumar is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License.

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